G - Physics – 07 – F
Patent
G - Physics
07
F
G07F 7/10 (2006.01) G07F 7/08 (2006.01)
Patent
CA 2273309
Products or services are vended in transactions with users, using a method and apparatus wherein account balances are stored on user cards, preferably smartcards having on-board data memory for carrying user account balances to be debited in the transactions, the data memory also containing a unique code that distinguishes each user or card and is also printed externally on the card. A card reading and writing device is associated with a vending machine, access controller or the like, and reads the account balance of a card presented by a user, enables vending and debits and re- writes a new balance to the card. Value adding machines can enter an account balance to add to an existing balance in a similar manner. At least one of the value adding apparatus and the card reading and writing device, and preferably both, contains a memory buffer that stores a log of the unique codes and the latest account balances of each successive user card to which an account balance was written. The log can be searched for a unique code and the most recent balance read out, if a card becomes unreadable. The log is preferably stored in a recirculating memory buffer of the value adding apparatus, which holds data on a predetermined number of most recent transactions only.
Fike Torrence N.
Gitlin Harvey S.
Zurn David G.
Borden Ladner Gervais Llp
Fike Torrence N.
Gitlin Harvey S.
Zurn David G.
LandOfFree
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